Abstract
Selected insecticides were evaluated for control of red banded, southern green, and brown stink bugs (adults and nymphs) and three-cornered alfalfa hoppers (adults and nymphs: TCAH) in a field trial at the Macon Ridge Research Station (Franklin Parish). Soybean seed (DP 4646) were planted into a Gigger silt loam soil on 10 May. Plot size was eight rows (40-inches on centers) x 50 ft. Treatments were placed in a RCB design with nine replications. Insecticides were applied on 8 Aug with a John Deere high clearance sprayer and CO2-charged system calibrated to deliver 6 gpa through Teejet TX-6 hollow cone nozzles (2/row) at 48 psi. Treatment efficacy against stink bugs and TCAH was determined at 2, 5, and 7 DAT using a standard (15 inches diameter) sweep net by taking 25 sweeps in each plot. Stink bug data was pooled into total stink bug adults (SBA), total stink bug nymphs (SBN), and total stink bugs (SBTOT). Data were subjected to ANOVA and means separated according to DMRT. No rainfall occurred during these tests.
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